NVIDIA RTX PRO 4000 Blackwell vs Lisuan Tech LX ULTRA Comparison

The Verdict

The database comparison between the NVIDIA RTX PRO 4000 Blackwell and the Lisuan Tech LX ULTRA shows two professional workstation cards aimed at different segments. The NVIDIA part delivers substantially higher raw compute throughput, while the Lisuan Tech card counters with a different memory clock strategy and a higher power envelope.

The NVIDIA RTX PRO 4000 Blackwell holds a clear performance advantage in every recorded benchmark category. Its PassMark G3D score of 28,427 places it in the 72nd percentile among all GPUs, while the Lisuan Tech LX ULTRA has no recorded benchmark scores and sits at the 50th percentile. The NVIDIA card delivers 36.83 TFLOPS of FP32 compute versus 24.58 TFLOPS for the LX ULTRA, a 49.8% advantage in single-precision throughput.

The Lisuan Tech LX ULTRA does match the NVIDIA card in memory capacity at 24 GB and in ROP count at 96 units. However, the LX ULTRA uses GDDR6 memory with a 432.0 GB/s bandwidth, compared to the NVIDIA card's GDDR7 with 672.0 GB/s. That 240.0 GB/s delta represents a 55.6% bandwidth advantage for the NVIDIA part.

For buyers, the data supports a clear split. The NVIDIA RTX PRO 4000 Blackwell is the choice for workloads that depend on FP32 compute, texture filtering, and memory bandwidth. Its 8960 shading units, 280 TMUs, and 70 RT cores provide a feature set that the Lisuan Tech card cannot match, since the LX ULTRA lists no RT cores or tensor cores in the database. The Lisuan Tech LX ULTRA suits scenarios where the dual-slot physical format and the 225 W TDP are acceptable, and where the 18 Gbps effective memory clock provides sufficient throughput for less demanding tasks. The LX ULTRA also offers a higher FP16 rate of 49.15 TFLOPS (2:1), which exceeds the NVIDIA card's 36.83 TFLOPS (1:1) when half-precision workloads are utilized.

Architecture Differences

The two cards diverge at the fundamental architecture level. The NVIDIA RTX PRO 4000 Blackwell uses the GB203 chip built on the Blackwell 2.0 architecture, fabricated on a 5 nm process at TSMC. The die contains 45,600 million transistors across a 378 mm² area, yielding a transistor density of 120.6M per mm². The Lisuan Tech LX ULTRA uses the 7G105 chip with the TrueGPU architecture, fabricated on a 6 nm process, also at TSMC. The database lists the LX ULTRA's transistor count and die size as unknown, with no density figure recorded.

The Blackwell generation designation for the NVIDIA card is "Blackwell PRO W (x000)," while the Lisuan Tech card belongs to the "7G100" generation. The NVIDIA card's predecessor is listed as Workstation Ada, while the LX ULTRA has no predecessor recorded.

Shader organization differs substantially. The NVIDIA card carries 8960 shading units, 280 texture mapping units, and 96 ROPs. It also includes 70 RT cores and 280 tensor cores. The Lisuan Tech LX ULTRA has 6144 shading units, 192 TMUs, and 96 ROPs, but the database records no RT cores and no tensor cores for the 7G105 chip.

Clock behavior also separates the two. The NVIDIA card has a base clock of 1230 MHz and a boost clock of 2055 MHz, while the LX ULTRA lists no base or boost clock figures. Memory clocks show a different relationship: the NVIDIA card runs at 1750 MHz with 28 Gbps effective, while the LX ULTRA runs at 2250 MHz with 18 Gbps effective. The higher physical memory clock on the LX ULTRA does not translate into higher bandwidth because the GDDR6 type and the same 192-bit bus width cap it at 432.0 GB/s.

FAQ

Q: Which card has more FP32 compute performance?

A: The NVIDIA RTX PRO 4000 Blackwell delivers 36.83 TFLOPS of FP32, which is 49.8% higher than the Lisuan Tech LX ULTRA's 24.58 TFLOPS.

Q: Do both cards have the same memory capacity?

A: Yes, both cards feature 24 GB of memory. The NVIDIA card uses GDDR7 with a 672.0 GB/s bandwidth, while the LX ULTRA uses GDDR6 with a 432.0 GB/s bandwidth.

Q: Does the Lisuan Tech LX ULTRA have ray tracing or tensor cores?

A: No. The database lists 70 RT cores and 280 tensor cores for the NVIDIA card, but records no RT cores and no tensor cores for the LX ULTRA.

Q: What is the power consumption difference?

A: The NVIDIA card has a 140 W TDP with a suggested PSU of 300 W, while the LX ULTRA has a 225 W TDP with a suggested PSU of 550 W.

Q: How do the physical dimensions compare?

A: The NVIDIA card is a single-slot design at 241 mm length, 111 mm height, and 20 mm width. The LX ULTRA is a dual-slot design at 268 mm length, 112 mm height, and 40 mm width.

Q: Which card supports newer display outputs?

A: The NVIDIA card uses 4x DisplayPort 2.1b, while the LX ULTRA uses 4x DisplayPort 1.4a.

Specification Differences

The two cards share only a few specifications: both have 24 GB memory, a 192-bit bus width, 96 ROPs, 4x DisplayPort outputs, and a 1x 16-pin power connector. Every other field shows divergence.

The process node differs, with the NVIDIA card at 5 nm versus the LX ULTRA at 6 nm. The NVIDIA chip packs 45,600 million transistors on a 378 mm² die, while the LX ULTRA's transistor count and die size remain unknown. The NVIDIA card has 8960 shading units versus 6144 for the LX ULTRA, and 280 TMUs versus 192. The NVIDIA card includes 70 RT cores and 280 tensor cores; the LX ULTRA has none recorded.

Clock speeds show the NVIDIA card at 1230 MHz base and 2055 MHz boost, while the LX ULTRA lists no base or boost clocks. Memory clocks differ, with the NVIDIA card at 1750 MHz (28 Gbps effective) and the LX ULTRA at 2250 MHz (18 Gbps effective). Memory type differs accordingly: GDDR7 for NVIDIA, GDDR6 for Lisuan Tech.

Fill rates favor the NVIDIA card. Pixel rate is 197.3 GPixel/s versus 192.0 GPixel/s, a 2.8% advantage. Texture rate is 575.4 GTexel/s versus 384.0 GTexel/s, a 49.8% advantage. FP32 follows the same pattern at 36.83 TFLOPS versus 24.58 TFLOPS. FP16, however, favors the LX ULTRA at 49.15 TFLOPS (2:1) versus 36.83 TFLOPS (1:1) for the NVIDIA card.

Power and physical design diverge sharply. The NVIDIA card runs at 140 W TDP with a 300 W suggested PSU and single-slot width. The LX ULTRA runs at 225 W TDP with a 550 W suggested PSU and dual-slot width. The NVIDIA card measures 241 mm by 111 mm by 20 mm; the LX ULTRA measures 268 mm by 112 mm by 40 mm.

Interface and API support differ. The NVIDIA card uses PCIe 5.0 x16, while the LX ULTRA uses PCIe 4.0 x16. Both support DirectX 12 Ultimate (12_2) and OpenGL 4.6, but Vulkan support differs: the NVIDIA card supports Vulkan 1.4, while the LX ULTRA supports Vulkan 1.3.

Release dates differ, with the NVIDIA card released on 2025-03-17 and the LX ULTRA on 2026-03-16. Both cards are listed as Active in production status.

Head-to-Head Benchmarks

The database records no head-to-head benchmark results between these two cards, and the Lisuan Tech LX ULTRA has an empty benchmark array with an average score of 0. The NVIDIA RTX PRO 4000 Blackwell, however, has nine recorded benchmark scores that establish its performance profile.

In 3DMark Steel Nomad DX12, the NVIDIA card scores 4,648. The Geekbench Vulkan test shows 194,168. PassMark results across different DirectX versions show 173 for DX10, 276 for DX11, 97 for DX12, and 354 for DX9. The PassMark G2D score is 1,265, while the G3D score reaches 28,427. The PassMark GPU Compute score is 14,805.

The NVIDIA card's average benchmark score sits at 27,135, placing it in the 72nd percentile of all GPUs. Its nearest rivals in the database provide context for this score. The AMD Radeon RX 6700 XT averages 27,425, which is 1.1% higher than the NVIDIA card. The NVIDIA GeForce RTX 4070 Mobile averages 27,435, also 1.1% higher. The NVIDIA GeForce RTX 3090 averages 27,565, 1.6% higher. The NVIDIA RTX A4000 averages 26,683, which is 1.7% lower than the RTX PRO 4000 Blackwell.

These close margins indicate that the RTX PRO 4000 Blackwell performs within a narrow band of established cards. The RTX 3090, a high-end desktop GPU from a previous generation, leads by 1.6%, while the workstation-focused RTX A4000 trails by 1.7%. The RTX PRO 4000 Blackwell's 28,427 PassMark G3D score confirms solid DirectX 12 rendering capability, while the 14,805 GPU Compute score shows compute-oriented workloads also benefit from the 36.83 TFLOPS FP32 throughput.

The Lisuan Tech LX ULTRA has no recorded benchmarks to compare. Its 50th percentile ranking among all GPUs reflects the absence of measured data rather than demonstrated performance. The specification sheet shows 24.58 TFLOPS FP32 and 384.0 GTexel/s texture rate, which would place it below the NVIDIA card in those metrics if benchmark results confirmed the theoretical figures. The LX ULTRA's FP16 advantage at 49.15 TFLOPS (2:1) stands as its strongest recorded specification, potentially serving workloads that rely heavily on half-precision arithmetic.